Wireless Sensor Networks G.Namratha (09331A0537) B.Spandana (09331A0511)Esteemed Guidance under B.Asha (09331A0519)G.Suvarna Kumar Sir G.Bhavani (09331A0538)
ABSTRACT Wireless Sensor Networks (WSNs) consist of smallsensing nodes with capabilities-computation andwireless communications. There are severalcharacteristics of wireless sensor nodes that limit theirfunctionality. Due to the use of batteries Wirelesssensors often have limited energy. The total networkcapacity is limited by the use of unsophisticated wirelesslinks that limit the range, reliability, and throughput ofcommunication between nodes . Providing access to thesystem by proper authentication makes the system moresecure.
INTRODUCTION Wireless Sensor Networks Energy Minimization Advantages Applications
Existing System Base station . Energy optimization is not achieved. More prone to attacks. Usage of same key. Data transmissions are not reliable.
Proposed System Uses Hierarchal clustering. Energy Minimization. Secure Routing. Makes use of efficient Key distribution techniques. Data Transmissions between privileged users. Cost can be decreased.
Cluster Based Hierarchal Network Hierarchal Architecture Levels in the design Base Station Cluster Head Sensor Nodes Need for Clustering
Modules of the Project1.Node Authentication2. Cluster Head Authentication3. Data transmissions4.Functional Requirements5.Non-Functional Requirements6.Software and Hardware Requirements
Node Authentication Algorithm Determine its Cluster Head Request Message Received Message Implementation
Cluster Head Authentication Algorithm Time stamp Key Generation Encryption Block Cipher Cluster Head Selection
Data Transmissions Node to Node Node to its Cluster head Cluster Head to Cluster Head Cluster Head to Base Station Secure transmissions
Functional Requirements Accurately measuring the environment’s temperature, light and humidity. Ability to cope with node failures. Sending the data to the base station. Access to authenticated users. Removal of malicious data entry.
Software Requirements• Language : PHP• Front end : Html,CSS• Back end : PHP-MYSQL• Operating System : Any PlatformHardware Requirements• Processor : Pentium-4• Speed : 3GHz• Ram : 1 GB• Hard Disk : 80 GB